Mining machine



2 Sheets-Sheet 1 June 1927.

21 G. BCDN ummm MACHINE med vec. is, 1924 wird!! June 1927.

21 G. BoDlN MINING MACHINE Filed Dec. 26, 1924 2 Sheets-Sheet 2 Patented June 21, 1927.

UNITED STATES GEORGE BODIN, OE CHICAGO, ILLINOIS, AssIGNoH To GOODMAN MANUFACTURING COMPANY, OE CHICAGO, ILLINOIS, ACOEronArroN OE ILLINOIS.

MINING MACHINE.

Application filed December This invention relates to improvements in mining machines, and more particularly to mining machines of the short wall type in whichthe operating motor of the machine is disposed at the rear'end of the machine frame, and the main operating mechanism including the draft mechanism, and the cutter lchain driving mechanism are located in front of the motor and between the latter and the cutter bar.

Machinesof this character have further been provided with a retarding drum at the rear end of the motor casing and adapted for attachment with a tail rope, this drum and tail rope `being under the control of a suitable ret-arding means such as a friction brake so as to retard the movement of the rear end of the machine as the exible feeding devices are operated to move the machine laterally across the working face during the cutting operation.

The principal object of the present invention is to provide an improved form of machine of the class described above in which a driving connection is provided between the operating mechanism at the front of the motor and the tail rope drum at the rear end of the motor, this connectionaffording means whereby the tail rope drum `may at certain times be driven by thel motor so as to wind the tail rope thereon and assist in positively moving the machine by means of this tail rope. 1

I also provide an interlocking connection between the main feed rope drum at lthe front of the machine and the tail rope drum at the rear end of the machine whereby the power cannot beI applied to both drums at the same time. A

kThe invention may be best understood by reference to theaccompanying drawings, in which:

Figure 1 is a top. lan view of a mining machine constructed in accordance with my invention;

Figure 2 is al fragmentary top plan view of the machine with parts broken away to show the operating mechanism; `and Figure 3 is asectional view taken on line 3--3 of Figure 2. n i

In the embodiment illustrated inl the drawings the lmining machine consistsof a cutter arm 10, a frame section 11 an motor section 12. The cutter arm is of the usual. type extending longitudinally fromthe 26, 1924. serial No. 758,009.

front end of the frame-section 11. It is also f provided with 'the usual cutter chain (not shown). The motor section 12 consists vof a .casing 13 wherein is housed a ymotor comprising an armaturel 14 and suitable field windings 15 at opposite sides of the casing. The motor is yarranged horizontally and longitudinally of the machine frame, thel total height thereof including the casing substantially determining the height of theentire machine. The frame 11 is connected forwardly of the motor casing, said frame and motor casing together forming a base plate upon which the machine is moved over the mine floor. The main feed driving mechanism is carried on the framev section and comprises a cable drum arranged on a transverse aXis and adjacent one side of the machine. Suitable power connectionsA including speed reducing. means are interposed between t'he rope drum kand the motor. In the form shown this power connection comprises a gear 21, loosely mounted on the hub 20 of the' drum 20, meshed with a pinion 22 on an intermediate shaft 23. The

latter shaft is driven through a, planetary transmission device indicated generally at 24 'and connected through shaft 25 and worm gear 26 to avworm 27 on a longitudinal shaft 28 carrying gear 29 meshedwith armature pini`on30. `The planetary transmission'device' may be of any suitable well known form` as for instance as shown in'patent to @.FJ. Davis--No\.1,1130,799, the details of w-hich` need not be herein described excepting to point out a high speed memberl and a low speed member 32 adapted to be selectively engaged by clutchv jaws 33, pinioned tothe shaft 23 and movable longitudinally Vthereof by means ofa coaxial shifter arm 37 having laterally,extending pins 38 working in slot 39 in i said shaft. n Through the gearing and powertransmissiondevice just described it will be understood that the feeddrum 20. may he driven selectively at high and low. speed. A cable 40 is wound upon the drum and-trained about a suitable -guide41 arranged forwardly of thejdrum and atthe corner of the machine frame in the usual manner. 'A clutch is interposed .Y between the driving gear 21 andthe drum 20, this clutch comprising a'clutch member 45 having lawe 46, L16,-rotatable therewithv and ada ted to extend throufrh apertures 47, 47, in clutch ring-21b 'i eliiiracter inasmuch as the sii'ed to engzige the clutclnftlie clutch iaWs 46, 46 are projected through and extend byond the clutcli'ring 21 into engagmeiit"` tailnropefdi'umG is rotatably mounted oliva shaft 61 at the rear endof the motor casing, this shaftextending` rearwardly on e.` horizontal. axis `so that the vtail `rope 62 may extendjlaterally Vfrom themachine and be `anchored in a suitable position to con trol the angular position of tlieiiiachine to the Working face during,r the cutting operation. y The drum is provided with y a brake .band 63 controllable by u tension controlmember 64 ofthe usual type. j

-. dieter-ring now` to the power `connection between the feed operating mechanism and v.the teil-rope drum `6(4) it, will be observed that Lpijovide a longitudinal sliaft ar- `rangednl oinif the lower side of the motor casing 13 and :it thexrearof the feedo er- `ating; drum 20. rllliis `shaft is provide at its :forvvardfend' With `s, bevel, pinion 7l `meshingz- With, similfirl pinion 72 keyedon the spurshft 73. A spur pinion 74 is l"also .keyed upon this shaft nol is engged'yvith the"driving gear 22 on the main driving shft 23'. The rear end of the shafti') is provided with a.Y pinion 75 Vmeslieol .Witln i spur gear 76`keyed on thefperiphory `ofthe tail rope drum 60`.' A clutchtmember feathered lon `tlieitear `endof the shaft 70 and is provided with clutch jaws 78 dapted `to 'engage with coecting cli'itclijetvs 79.- carried on the face of inion 75." A'The clutch `member 77 is controled by t lever 80 pivoted-` onfa support 81:end"haviiilfiV e shifter yoke `i32'huvinef pins 83viriding in erinn-l Jnfular. groove 84. in` the member 77.:` By `inefinslof `this clutch and" shifting `Iinejclin1`sn--t1ie shaft may be engaged `with or disengnged from the pinion 75isoas to drive the tail rope drum `60 or allow .it to Jrotate. Aunder 'control of a friction bund 63` in tli "usual i i between y x V1main feed rope dr`um'20-a`nd`the tail rope manner.

y l. also Irovile` interlocking; connection me clutch 'members eontrollmg the drum `60, f this i interloeliingconnection bemay4v be driven .etl one time. `This errungernent isxadvantageous in a machine of: this ropes, connectedu with lthese two drumsyex-1 tend in Aopeste' directions liront the mrtcliine, so t at an accidental simultaneous application of power to both drumswould be likely to cause serious damage not only to the-machine but nto the operator.V This interlocking"iiieolifuiisiiiV del shown `herein coiiiptises n lever 90nrockin`gf"`oii `ulcruni 9i at the rear end of the motor casing;r Vend connectedto the lever by a link 92. A rod 93 4extendsyforwurdly from the upperend of t'ie' lever 9U and ispivoted to a bell crank lever 94 fivoted one vertically. disposed bearingping end huvingits free arm `96V eiigaigi'ingr;` the upFer endfof` the shifterlever V53 Awhich opera inechiinisin it will be seen tlieteither one the cli'itch member ffl'i..v By means of lthis interlocking operating ofthe drums may be driven but When yone v drum is connected the other is disconnected. Y

In the position of the hoperziting levers shown in the drawings in Figure 3, the tivo clutches are in `neutral `position that neither of tliedruuis arebeing driven. It will bel clearly seen liowevei"` tha.t[by moving the lever 8() forwardly, the clutch member 77 Will bel Withdrawn rearwardly und removedl still further from the coacltingi` clutch jaws 79 of the'gear 75.V This saine movement ofthe lever will rock the lever Mid druvv rodi 93,1*earwar ly, and caiise theuii per end of the lever 53 to, rock outward V:ind the lower end thereof carrying the shifter yoke and shifter members 50 inwardly toengage thecluteh jaws 47' with coact ingfmeinbers 4 81- ivitliin; the feed ropey drum 2U, thusl forming;` a' driving"y connection bef` tween the` motor" and the `feed `opemitting' drum. The reverse'movement of` the lian- `dile 80wvi1l move the clutch member `through the neutral; position slfif'ivvniin` Figure 3 sind into'` position vvli'ere v they clutch linember 77 engages the geufrpilnion 75 while the clutch operating lever 53 i swung in the opposite direction to ivitliduw" the "clutch iijieinber .45 from, engagement .ivitlii Yclutch niem- Eitherof the drums may be :rotated in direction of therotjation' of the motor in the usuo. manner. l j

`While `I have shown andhdescribed one embodiment ofmv invention it ivill be iin derstood that" the rurraiigfeinent"ond `cori-V eitherI direction as desiredby reversing the Y f struction ofthe parts may be falteredivitlif Y out depertingffrom`-`tlie spiritV aindjsco Ie thereof. Furthermore. I do not Wishto e construed as limiting myself to thepw'itic- Millar constmeton illnst'rated` excepting as it may be speccally'ihnted inr theeppehded o lclaims. ingrrang'ed so thi'itonly'one ofthe drums I claim as my invention: Y Y 1. In a mining machine. "einotor,r aV for- "ivardly` projecting cutter berend flexible feed driving mech@nietl i in ar and feed mechaeiidng feed` drtnn andymiiltiple s eed transmission de "vice,` both said cutterl?) y nisrn being` disposed in front of seidm'o'tor :ind included substantially within the vertical limits thereof, a tail rope drum rotatable on an axis extending longitudinally1 of the machine and -at the rear end of said motor, power connections between said tail rope drum and said multiple speed transmis-v rotating drum and clutch mechanism for connecting or disconnecting said drum from said feed driving mechanism, a tail rope drum rotatable on an axis extending longitudinally of the machine and at the rear end of said motor casing, power connections between said feed operating mechanism and said tail rope drum including a shaft extending along one side of said motor cas,- ing, clutch means for connectingl or disconnecting said tail rope drum from said shaft,

and an interlocking mechanism connectingl the clutch members of the feed drum and tail rope drum respectively operative to engage one of said clutches while the other is disengaged. v

3. In a mining machine havingy a motor casing, feed driving mechanism arranged forwardly of said motor casingand substantially within the vertical limits thereof, said feed driving mechanism including a rota-ting drum and clutch mechanism foi` con? necting or disconnecting said drum from said feed driving mechanism, a taily rope drum rotatable on an axis extending longitudinally of the machine and at the rear end of said motor casing, power connections between said feed operating mechanism and said tail rope drum including a shaft extending along one side of said motor casing, clutch means for connect-ing or disconnect ing said tail rope drum from said shaft, an interlocking mechanism connecting the clutch members of the kfeed drum and tail rope drum respectively operative to engage one of said clutches while the other is disengaged, and clutch operating mechanism for controlling said yinterlocking mechanism mounted on the rear end of the motor casin. 1l. In a mining machine, a motor, a forwardly projecting cutter bar and flexible feed driving mechanism, both said cutter bar and feed mechanisms being disposed in front of said motor and included substantially within the vertical limitsv thereof, a tail rope drum rotatable on anaxis extending longitudinallyl ofthe machine and at the rear end of said motor, power` connections between said tail rope drum and said feed driving mechanism including a shaft extending along one side of said motor casing, and means for selectively actuating either said feed drum or said tail rope drum independently of each other.

5. In a mining machine, a motor, wardly projecting cutter bar and flexible feed driving mechanism including a feed drum rotatable on a transverse axis and disposed on the advancing side of said cutter bar, both said cutter bar and feed mechanism being disposed in frontI of said motor and included substantially within the vertical limits thereof, a tail rope drum rotatable on an axis extending longitudinally of the machine and at the rear end of said motor, power connections between said tail rope drum and said feed driving mechanism including a shaft vextending along one side of said motor casing,V and means for selectively actuating either said feed drum or said tail rope drum.

Signed at Chicago, in the countyof Cook and State of Illinois, this @lith day of December, A. D. 1924.

GEORGE BODIN.

a for- 

